Paper #: 5.2.18
Title: Power-Controlled Data Prefetching/Caching in Wireless Packet Networks

1. Problems
-As continual wireless access to sets of data becomes more prevalent, the idea of prefetching and power control become crucial. Power conservation is especially important to wireless/mobile technology, and since power levels change inversely with signal strength, taking advantage of strong signals to prefetch possible items is important.

2. New Idea and Strengths
-This paper brings two ideas- taking advantage of low power levels to prefetch probable items, as well as developing a mathematical framework to analyze prefetching techniques and power conservation techniques.

3. Weaknesses and Extensions
-There isn't much in terms of suggestions for good prefetching techniques or decision making.
-All of their testing was simply delay vs. power, and none of it was total power consumption. I would think that in prefetching vs. no buffering, no buffering would have lower total power use as opposed to prefetching, which is trying to load almost all the time. They didn't look at this at all, which was disappointing. They didn't talk about total power use, which I would think is a big part. Not just current power usage as opposed to the delay.
-I think the system they propose would be applicable to some kind of mobile data recorder that doesn't have a choice in transmition quality, but not as applicable to something that is more interested in preserving battery life.